15 Minutes
You have 8 km in an hour.
Divide all that by two and you'll have 4 km in 30 mins.
Then divide by two again to end up with 2 km in 15 mins.
You could alternatively divide by four from the beginning, but I find this easier.
Answer:
17792.3792
Step-by-step explanation:
:))))))
Cos 75 = 45 + 30
Formula: cos 45 x cos 30 - sin 45 x sin 30
Cos 45 = root 2 / 2
Cos 30 = root 3 / 2
Sin 45 = root 2 / 2
Sin 30 = 1 / 2
The roots of
are 0 (multiplicity 2), -3 (multiplicity 1),
(multiplicity 1) and
(multiplicity 1).
The characteristics of the polynomial can be derived from algebraic techniques. Roots and multiplicity can be found by <em>factoring</em> the polynomial. The multiplicity is represented by a power binomial of the form:
(1)
Where
is the grade of the polynomial.
Now we proceed to factor the formula:



Please notice that
have two complex roots.

The roots of
are 0 (multiplicity 2), -3 (multiplicity 1),
(multiplicity 1) and
(multiplicity 1).
We kindly invite to see this question on polynomials: brainly.com/question/1218505